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SYNTHESIS OF ENANTIOMERICALLY ENRICHED 4-ARYL-3,4-DIHYDROCOUMARINS

Zigmars Leitis
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Abstract


Several synthetic approaches are known for the preparation of chiral 4-aryl-3,4-dihydrocoumarins (DHCs). This article considers recently discovered methods for the synthesis of chiral DHCs: enantio­selective Rh(I)-catalyzed 1,4-addition of arylboronic acids to α,β-unsaturated carbonyl compounds, asymmetric reduction of coumarins, oxidation of chiral indanones, hydroesterification of alkenylphenols, and the addition of 1,3-dicarbonyl compounds to o-quinone methides.


Keywords


boronic acids; dihydrocoumarins; 1,4-addition; enantioselective synthesis

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